Host relations of the parasitic cowbirds.

A bestiary for Saint Jerome : animal symbolism in European religious art

Birds collected by the Childs Frick expedition to Ethiopia and Kenya colony

The evolutionary history of the avian genus Chrysococcyx.

A further contribution to knowledge of the host relations of the parasitic cowbirds

The Parasitic Weaverbirds (Classic Reprint)

Notes on the Ornithology of Tropical East Africa (Classic Reprint)

The Evolutionary History of the Avian Genus Chrysococcyx (Classic Reprint)